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The border-spacing property in CSS controls how far apart cells are in a <table> element (or an element that is made to be table-like via display: table;).
It takes any of the lengths of CSS.
Notably, it only has any effect at all if the table is using the default border-collapse: separate; and has no effect at all when border-collapse: collapse; is set.
See the Pen
Table with Rounded Cells by Chris Coyier (@chriscoyier)
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